erik Hi pkyleUPI , This, unfortunately, does look like a hardware issue. Could you contact support@luxonis.com, and link them this discussion link, so we can replace the device? Thanks, Erik
Mdoust I have five cameras connected to a laptop using an active USB extender. However, one of the cameras randomly stops working with an X_link error related to limited bandwidth. Everything works fine when I limit the USB speed to High. Any help would be greatly appreciated. Noted that sometimes everything works fine without any issues. Thank you.
jakaskerl Mdoust Can you provide some logs? What script are you trying to run? Can you do a luxonis/depthai-experimentsblob/master/random-scripts/oak_bandwidth_test.py as well to check. Thanks, Jaka
Mdoust Thanks for the reply. I noticed that the problem is because of active USB extender, I changed the cable and I can get enough bandwidth.
Mdoust Hi again. While the error was absent for a few days, it has reappeared this morning. Everything was working fine until last night. I am checking the bandwidth and noticing that it reduces to Downlink: 335.6 Mbps, Uplink: 221.0 Mbps (using luxonis/depthai-experimentsblob/master/random-scripts/oak_bandwidth_test.py). If I set maxUsbSpeed = dai.UsbSpeed.SUPERPLUS, I get an Xlink error, so I have set maxUsbSpeed = dai.UsbSpeed.HIGH.
jakaskerl Mdoust Does usb speed remain around the same each time you test now? What changed? Did you restart the host, used a different port, things like that? Try setting UsbSpeed to SUPER and retry. Thanks, Jaka
Mdoust Previoualy I saw the speed is aroufn 1800 Mbps and now it is 300. If I put UsbSpeed to super, I will get X_link error. I just truned off the camera for the first time in the last 5 days and rerun it again, so the error appears.
Mdoust As a solution, I unplug the entire cables and replug them and now it works. I am not sure what the problem is and how to avoid it using the software
Mdoust Thanks a lot for the help. I was wondering if there is update as I can see my bandwidth randomly changes using active cable extension
jakaskerl Mdoust Difficult to say what the cause is. An active cable should only amplify the signal and shouldn't affect the bandwidth. Perhaps there is a latency buildup which causes this. Thanks, Jaka